Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Onyebuchi Nelson Chiakpo, PMHNP

Psychiatric/Mental Health Nurse Practitioner in Addison, TX · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1659046373

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Onyebuchi Nelson Chiakpo

Credential PMHNP

Sex Male

Practice address Addison, TX, 75001

Phone (214) 200-5755

Enumeration date Aug 13, 2021

Last updated in NPPES Aug 13, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 882059 (TX) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1659046373 active?

Yes, as of the latest NPPES snapshot, NPI 1659046373 is active (record last updated 2021-08-13).

How do I verify Onyebuchi Chiakpo's NPI record?

Cross-check NPI 1659046373 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-13.